Home / 19,891.55-29,835.10-5,100.81

Finding the Fourth Proportional to 19,891.55, 29,835.10 and 5,100.81

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Solution

The fourth proportional to 19,891.55, 29,835.10 and 5,100.81 is: 7,650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.55 : 29,835.10 = 5,100.81 : x
  2. Step 2: Convert to fraction form
    19,891.55/29,835.10 = 5,100.81/x
  3. Step 3: Cross multiply
    19,891.55x = 29,835.10 × 5,100.81
  4. Step 4: Simplify right side
    19,891.55x = 152,183,176.43
  5. Step 5: Solve for x
    x = 152,183,176.43/19,891.55
  6. Step 6: Final answer
    x = 7,650.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.